Container spout



J. E. BORAH CONTAINER SPOUT Aug. 4, 1959 3 Sheets-Sheet 1 Filed Oct. 26, 1955 FIG.

FIG.

FIG. 9

FIG. 3

INVENTOR.

JOHN E- BORAH BY FIG. IO

A TTORNEY Aug. 4, 1959 Filed Oct. 26, 1955 J. E. BORAH CONTAINER SPOUT 3 Sheets-Sheet 2 INVENTOR.

JOHN E. BORAH ATTORNEY Aug. 4, 1959 J. E. BORAH 2,898,018

CONTAINER SPOUT Filed 001;. 26, 1955 s Sheets-Sheet s FIG. I3

INVENTOR.

J OHN E BOR AH TQ NEX U e w O is I 2,898,018 Patented An 5? The present invention relates to containers and more particularly to detachable spouts therefor.

The present invention is primarily concerned with container spou'ts of the type disclosed in mycopending application Serial No. 520,495, filed July 7, 1 955, new Patent No. 2,804,242, and-consists generally of improvements in the spout disclosed in said earlier case. One of the principal objects of the present invention is to provide a liquid pouring spout for conventional liquid c'ontainers, which can quickly be attached to and detached from said containers by hand without the aid of any tools or machines and without any special skill or knowledge on the part of the user, and which is so constructed that it can readily be attached to the container in the home by the housewife, on the farm, in the factory, or in a service station by common or' unskilled labor.

Another object of the present invention is to provide a flexible spout for a container which can be folded into the container opening and the opening capped without the user touching any part in contact with the Com tents of the container, and which will automatically extend itself when the capis removed from the container and the container moved to pouring position. This feature of the present invention is of particular importance when the contents of the container consist of skin irritating or poisonous chemicals in that the entire operation of un'sealing the container, pouring the contents therefrom and rescaling the container can be accomplished without the user coming in contact with the chemicals.

Another object of the present invention is to provide a'resili'ent collapsible-spout which is adapted to be mounted on a" container having an opening designed for' a conventional screw thread'edor snap-on cap, and whichis so constructed that it can be detached and reused over and over' again indefinitely. 7

Still another object of the invention is to provide a spout'of the aforesaid type which can be readily removed from a container and used as a tunnel for the container intowhich'the liquid is poured, and then reassembled onto and sealed in the original container.

Another object ofthe' invention is to provide ameans adapted to assist the spout to collapse into the container outletwhen the container is to be sealedor recapped;

As described inmy copending application mentioned above," when the spout is" collapsed into the container neck in the recapping operation, the conical side portion of the spout folds downwardly over the upper surface of the base of the spout to form a sealing gasket for the container cap, thus eliminating the necessity ofia separate gasket in the cap. One of the objects of the present invention is to provide a spout of the afore- ,said' type having-a-structure which improves the .eiiectiveness' of the gasket formed by the spout.

Another object of the invention is to provide a col- -lapsible spout for a container which will remain in either its collapsed or extended position and which can easily be moved from one position to the other By hand without the use of any tools or special attachments.

2 Additional objects and advantages become apparent from the following description and accompanying drawings, whereini Figure 1 is a side elevation of a conventional metal container showingmy improved spout mounted on the container neck in its extended position;

Figure 2 is a vertical cross-sectional view of thespout shown in its extended position mounted in the opening of a container, such as a conventional fifty gallon barrel or drum; Figure 3 is a vertical cross sectional view of the spout shown in Figure 2, in its collapsed position in the open' ing of the container; 7 I

Figures 4, 5, and 6 are vertical cross sectional views of a modified form of my spout, showing the various stages through which the spout passes as it collapses into the liquid outlet of a container; v

Figure 7 is a vertical cross sectional view of my spout showing a modified form of the means for attaching the spout to the container; 7 p I p K Figure 8 is an elevational view of the spout and two containers, illustratingjhe use of my spout as a funnel; Figure 9 is a fragmentary view of any one brute spouts disclosed herein, showing the outlet end of the spout sealed by a closure;

Figure 10 is a fragmentary View of a sp out sir'nil r to that shown in Figure 9, in which theseal betwee the spout and closure has been broken and the closure latched in its open position; and

Figures 11, 12 and 13 are vertical "cross sectional views of a further modified formof my spout, showing the various stages througliwhich the spout passes as it collapses into the liquid outlet of a container;

In Figure 1 my spout 10' is shown mounted in its ex tended position in the outlet of a container 12, such as a barrel or drum; the details of said spout being shown in Figures 2 and 3, wherein numeral 14 designates a bilge or neck defining the liquid opening of the container. The bilge is secured place in the top of the container usually by welding the two together at numeral 16 and he mally threaded internally for receiving a closure. The bilge is also shown threadedtexternally for receiving a. cap for use in conjuncti'on' with rny spout, as'will be more fully disclosed hereinafter; The sp'o'ut' Itl which is' preferab-ly made of rubber, rubber-like material or flexible and/oi" resilient plastic material consists" of a thick and relatively firm annular base 18, a frusto -conical portion 20 secured: to saidy'base and an outwardly flaring r eck 22 joined to the small end' of conical portion 20". While the base is threaded externally to correspondto the internal. threads on bilge 14; it is normally not screwed into the bilge but rather is vflexed or compressed suificiently to permit it to slip into the opening and is then released to permit it to expand and engage the threads in thebilge. After thebase has expanded and engaged the threads it forms a fluid tight seal against the threads and can not be dislodged by any normally forces or pressures to which the spout would normally be stibjected. To remove the base ffom the opening it is compressed by applying pressure to an annular flange 24' formed integrally with the upper partof the base and then the base is flexed and slipped endwise from the opening, l The neck 22 is tapered outwardly toward the free end; and preferably provided with a head 26, to give the neck smitten rigidity that it retains its cylindrical shape in both the collapsed and extended position of the spout;

"eing" used and a s ubstantial section of material for the user to grip collapsing and extending the spout; ,In the present type of spent the folding which occurs when it is cllapsed usually commences" in the conical portion adjacent the base of the neck. This folding is facilit'hus' providing a good po'ur lip for thespout while it ,is

tated by providing relatively thin walls in the neck and conical portion adjacent the point of juncture since this construction tends to localize the point of initial folding and creates an annular fold which permits the conical portion to move readily and smoothly in an axial direction until it assumes its completely folded'position as shown in Figure 3.

In sealing the container, the spout is collapsed to the position shown in Figure 3 by pressing downwardly on neck 22 and then placing a closure 28 over the opening and securing it to the bilge by any suitable means, the closure shown being secured to the bilge by screw threads on the outer and inner surfaces of the bilge andclosure, respectively. When the spout is folded inwardly as shown, the lower part of conical portion 20 and/or annular flange 24 form a gasket between the internal surface of the closure and the bilge to effectively seal the con- .tainer. crown or snap-on cap may be used to seal the container. If the container contains irritating or poisonous chemicals which might be injurious to the one using the container, the contents can be poured from the container using the spout and the container resealed without the user coming in contact with the chemicals. In accomplishing this, the user removes the closure and tilts the container to pouring position. The spout which can be moved to its extended position with very little pressure, is forced to that position by the pressure of the liquid as soon as the container is tilted to the point where liquid starts to flow through the spout. After the user is through pouring, the container is resealed by placing the closure on the spout and pushing it downwardly causing the spout to collapse into the container opening, as shown in Figure 3. The closure is then secured to the container by screwing it onto the bilge and tightening it until an effective seal is formed between the inside surface of the closure and the conical portion at numeral 30 or between said surface and annular flange 24.

V In some installations it may be desirable to latch the spout in its collapsed position. This can be accomplished by placing a projection 31 on one side of neck 22 and a second projection 32 on the outside surface of the conical section 20 directly below projection 31. When the spout 1s in its collapsed position as shovm in Figure 3, the two projections are interlocked, with projection 32 above proection 31, thus holding the neck in its folded position. .To disengage the projections the neck is tilted sidewise away from the projections until projection 31 will pass pro ection 32 as the neck is moved outwardly. Instead of using two projections, one of the projections can be enlarged and the other projection replaced by a recess into which the projection will seat when the spout is in its collapsed position.

In the modified form of my spout shown in Figures 4, Sand 6, two annular ribs 33 and 34 are provided on the internal surface of conical portion 20, each of said ribs being adapted to perform a distinct and separate function from the other. As mentioned previously, collapsing of the spout is facilitated by the formation of an annular fold in conical portion 20, particularly near the small end thereof, as shown at numeral 36 in Figure 5. Annular rib 33 placed near the small end of portion 20 encourages the formation of the fold promptly upon pressure being applied downwardly on the end of neck 22. As soon as annular fold 36 is created further application of downward pressure causes the conical portion to fold smoothly upon itself until it reaches the position shown in' Figure 6, i.e. its fully collapsed position. This rib is of particular importance in spouts having a relatively long and possibly thick conical portion 20 which resists folding or which does not tend to fold in such a manner that it will readily telescope into the area defined by the base. Rib 33 overcomes these difficulties in spouts of that type. The height of annular rib 33 along the internal surface of conical portion 20 can be varied without Any other suitable type of closure such as a 4 seriously affecting the function of the rib in creating the annular fold although formation of the annular fold is generally facilitated by placing the rib near the small end of portion 20.

Annular rib 34 comes into operation when the spout approaches its fully collapsed position. This rib improves the gasket characteristics of the spout by creating a firmer and more uniform surface for the underside of the closure to engage as the closureis tightened down against the spout. As shown in Figure 6 when the spout approaches its fully collapsed position rib 34 folds downwardly against the internal surface of the base forming a fulcrum point over which the lower part of conical portion 20 is pulled, thus stretching and firmly holding the part serving as the gasket, in the position to form the most effective seal with the underside of the closure.

The base 40 in the embodiment of Figures 4, 5 and 6 is substantially the same as the base of the spout shown in Figures 2 and 3 of my earlier case, and as shown in the drawings consists of a relatively thick annular base formation 42 having an annular groove 44 adapted to fit over an internal bead on the neck of a container. The sidewalls of the groove grip the bead and form an effective seal to prevent leakage between the spout and container neck. Since the base is made of rubber or other flexible material, it can readily be distorted to insert and remove it from the container neck. The base however is 'sufficiently stiff to prevent it from being unintentionally displaced during use.

The embodiment of my invention shown in Figure 7 is similar to the one shown in Figures 2 and 3, with the exception that instead of the heavy externally threaded base a lighter base 50 is used having an annular groove 52 which is adapted to slip over and embrace a sleeve 54 threaded into the opening in bilge 14. The lower edge of the base may also be threaded on its external surface to engage the threads on the bilge below the sleeve. To assemble a spout having this type of base, sleeve 54 is first threaded into the bilge opening to the position shown and the base of the spout is then distorted inwardly sufliciently to permit it to slip through the sleeve until groove 52 is on a plane with the sleeve. The base on being released returns to its circular shape with the sleeve fully embraced in groove 52. To remove the spout, the base is again distorted inwardly and the spout slipped endwise until it clears the sleeve.

In the embodiment of Figure 7, a small hollow stem 60 is provided to eliminate the back flow of air through the neck of the spout and thereby assure an even flow of liquid from the spout. When only a small quantity of liquid is desired the container can be tilted in the direction of stem 60 only sufliciently to permit the liquid to flow through the stem, thus obtaining a small, easily controlled stream. This feature is claimed in my previously mentioned case.

Figure 8 illustrates the use of my spout as a funnel. The spout which is normally in place on the container is removed from the container and inverted so that the small end of the spout will extend into the receiving container 61. Liquid from any container or spigot can thus be transferred by pouring it into the large end of the spout. When the operation is completed the spout is then returned to the original container. Any one of the spouts shown herein can be used satisfactorily as a funnel. The spout used in the illustration of Figure 8 has a somewhat longer neck than those previously described, a straight section 62 having been interposed between conical portion 20 and the flaring neck portion 22. The operation of this spout, however, is substantially the same as the operation of those in the previously described figures.

The present spout, if mounted on a container before the latter is shipped to the customer, can serve as a seal to prevent contamination or removal of any of the container contents transit. As shown in Figure 7 a sealing disc 70 is secured to the outlet end ofthe spout and is attached to the side walls of the neck by a thin section of material which can be readily tornto remove the disc when the container contents are to be used. A tab 72 is preferably provided on the edge of the disc to facilitate removal of thedisc. Thesealing disc would normally be formed integrally with and of the same material as the spout proper and would be fabricated in the same operation as the spout. When the disc is to be used as a seal to indicate to the ultimate customer that the container has not been opened the base of the spout should be sealed or locked in placeto prevent the spout from being removed and then replaced without leaving any telltale evidence of that fact.

Figures 9 and 10 illustrate a modified form of the spout sealing means. In this embodiment the disc 80 is permanently attached at numeral 82 to one side of the outlet of neck 22 and is connected to the remainder of the neck outlet by the same thin section of material as that used in Figure 7. In order to direct the force being applied by the user in lifting the disc to the area of the thin section, the stem 84 is offset from the center of the disc toward the thin section and away from the permanently attached part 82. When the disc is lifted by pulling on stem 84, the disc is severed from the neck along the thin section and pivots at point 82, thus forming a hinged cover for the small end of the spout. Since the disc normally tends to close and stay closed' after the thin section is severed, a latch is provided to hold the disc in open position while the spout is being used. A small tubular member 86 attached to the outside surface of neck 22 on the same side as hinge 82 is provided to receive stem 84 and hold the disc in open position as shown in Figure 10. The hole in member 86 is slightly smaller than stem 84 so that the stem will be gripped and held firmly enough to eflectively resist the force tending to return the disc to its closed position.

The spout illustrated in Figures 11, 12 and 13 is similar to the one shown in elevation in Figure 8, i.e. it is provided with a relatively long neck having a cylindrical section 62 interposed between conical section 20 and the flaring neck portion 22. This spout structure is particularly adapted to the formation of an effective sealing gasket from the lower part of the conical section when the spout is in its collapsed position. The annular base formation 88 is adapted to be mounted on a container having a neck 90 with an internally extending flange 92, although, if a different type of container neck is involved the corresponding base, previously described herein, may be substituted for the base shown in these figures. The base 88 is sufficiently resilient and flexible to permit it to be readily inserted in the container neck and is provided with a circumferential groove 96 for internal flange 92 which holds the spout firmly on the neck without any additional securing means. The base also grips flange 92 sufliciently tightly to form an effective seal between the base and flange to prevent leakage round the spout while the liquid is being poured from the container. When the container is to be recapped neck 22 is pressed downwardly causing conical portion 20 to collapse to the position shown in Figure 12. As the neck is pressed further cylindrical portion 62 folds progressively upon itself until the upper end of neck 22 is substantially on a plane with the upper side of annular base formation 88. The movement of the neck downwardly from the position shown in Figure 12 to the position shown in Figure 13 and the consequent folding of the cylindrical portion 62 upon itself draws the large end of the conical portion'firmly over the upper side of the base to form an effective gasket at numeral 98. After the neck has been pressed to the position shown in Figure 13, the stretching and compression of wall portions 100 and 102 respectively, of the cylindrical portion 62 to hold or retain the neck in its fully depressed position and the gasket portion stretched over the upper side of the base.

The neck however can easily be pulled from its" depressed position to the extended position when the spout is to be used. When the neckis fully depressed the container closure can be applied without any interference from the spout, since in this embodiment, the periphery of the base and conical section do not extend to the periphery of the container neck to which the closure is secured by screw threads or other suitable securing means. As the closure is tightened down it engages the gasket portion 98 of the spout and fully seals the container.

Various modifications may be made in the foregoing structures,- including various combinations of features disclosed, without departing fromthe scope of the present invention. For example, rib 33 and/or rib 34 canbe used on the spout embodiments shown in Figures 2, 7 and 11, and the closures of Figures 7 and 9 can be used on any of my spout embodiments. Further, for some uses a spout without neck 22 may be preferred. In this latter design an annular bead may be used at the small end of frusto-conical section 20.

I claim:

1. A spout for a container having an outlet portion, comprising an annular base of resilient material for engaging said outlet portion, a hollow frusto-conical section of resilient material joined at its large end to said base, a hollow neck joined at one end to the small end of said section and increasing in external diameter toward the other end throughout a part of its length, and an annular rib on the internal side of said section in the proximity of the small end thereof and in spaced relation thereof, said frusto-conical section being adapted to fold upon itself starting in the space between said rib and said neck.

2. A spout for a container having an outlet portion, comprising an annular base of flexible material for engaging said outlet portion, a hollow conical section of flexible material joined at its large end to said base, a hollow neck joined at one end to the small end of said section and increasing in external diameter toward the other end throughout most of its length, and an annular rib on the internal side of said section in the proximity of the small end thereof and in spaced relation thereto, said conical section being adapted to fold upon itself starting in the space between said rib and said neck.

3. A spout for a container, comprising an annular base, a hollow frusto-conical section of resilient material joined at its large end to said base, a hollow neck joined at one end to thesmall end of said section, and an annular rib on the internal side of said section in the proximity of the small end thereof and in spaced relation thereto, said frusto-conical section being adapted to fold inwardly upon itself starting in the space between said rib and said neck.

4. A spout for a container, comprising an annular base, a hollow frusto-conical section of resilient material joined at its large end to said base, and an annular rib on the internal side of said section in the proximity of the small end thereof and in spaced relation thereto, said frustoconical section being adapted to fold progressively upon itself starting in the space between said rib and the small end of said section.

5. A spout for a container, comprising an annular base, a hollow frusto'conical section of flexible material joined at its large end to the outside edge of said base, and an annular rib on the internal side of said section in the proximity of the large end thereof and in spaced relation thereto, said. rib being adapted to fold inwardly and contact said base and thereby to pull the said section firmly inwardly over the upper surface of said base.

6. A spout for a container, comprising an annular base, a hollow frusto-conical section of resilient material joined at its large end to the outside edge of said base, a hollow neck joined at one end to the small end of said section, and an annular rib on the internal side of said section in the proximity of the large end thereof and in "3 spaced relation thereto, said rib being adapted to fold inwardly and contact said base and thereby to pull the said section firmly inwardly over the upper surface of said base.

7. A spout for a container, comprising an annular base, a hollow frusto-conical section of flexible material joined at its large end to said base, an annular rib on the internal side of said section in the proximity of the small end thereof and in spaced relation thereto and an annular rib on the internal side of said section in the proximity of the large end thereof and in spaced relation thereto, said frusto-conical section being adapted to fold inwardly upon itself starting in the space between said 8 first mentioned rib and the small end of said section and said second mentioned rib being adapted to fold inwardly and contact said base.

References Cited in the file of this patent UNITED STATES PATENTS 

